Residents should expect heavy rain capable of producing flash floods, the weather service said, noting that more than an inch of rain had already fallen in the city and areas just outside, including Catonsville and Rosedale.

Historic flooding and the coldest temperatures in decades made weather headlines in Baltimore in 2014. Rainfall records were set in April and August, and after a frigid winter, the summer was comfortable and fall cool. The year is expected to be the coolest and wettest here in years.